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Communication: FOURTH PERIOD

A randomized 25 question test from a pool of 761 questions, good luck!
Voltage to voltage converters are best defined as which of the answers below?
A defined area of geographical coverage is commonly called an area network. Which of the area networks below best known for use with USB and bluetooth devices?
The limits of a OUT parameter status field has several different classifications. Which of the classifications below can be described as the indication of a parameter under the LRV?
In Modbus, data is read, and written in various memory ranges. Which of the answers below best represents the data type that a coils would use?
A typical HMI has several subsystems attached to it. Which of the subsystems below would be involved in the guardianship of the process control inputs?
In the protocol specifications of Modbus, there are only four types of registers that can be accessed by the master. Which of the answers below expresses the register size and permissions of an input status register?
Ethernet/IP, is the ______ level protocol that industrial Ethernet uses exclusively. Select the term below that best fills in the blank.
There are several data access methods used to transmit data. Which of the answers below can be described as a method that the responding device cannot initiate any communication independently?
DCS commonly is considered a computerised control system for a plant that has central operator supervisory control. Which of the terms below is best described as a system that allows for exchange of data throughout, but can have remote systems within the system?
Open communication protocols have several disadvantages. Which of the answers provided below represents one that is not a disadvantage?
There are many versions of Modbus, one of those is Modbus RTU. Which of the answers below correctly orders the components of the Modbus RTU frame?
The various DCS networks are vital to any plant or process operating smoothly. Which of the networks below must faster and more reliable than any of the others?
Modbus has standard command codes to allow the master to access information from it's slaves. Which of the commands below would be used to request the content of the slaves input register # 30009?
A modern DCS needs to be able to respond to growing demands. Which of the terms below is best defined as the measure of a system's ability to increase or decrease in performance and cost in response to changes in application and system processing demands.
In the unbalanced signal transmission system, which answer best represents the number 3?
Data communication in a DCS takes the form of various networks. Which of the networks below connect servers that share control data over redundant networks?
There are two characteristics that are defined by the classifications of the IPv4 networks. Which of the answers below contains both of those characteristics?
The various DCS networks are vital to any plant or process operating smoothly. Which of the networks below must faster and more reliable than any of the others?
The TCP/IP protocol was designed for simplicity and speed. Which of the OSI layers below does the TCP/IP protocol interact with?
Which of the recommended standards would be best described as having a full duplex transmission system?
Data communication in a DCS takes the form of various net works. Which of the networks below would connect FCEs, field devices and sensors?
IPv4 network classes can also be defined by the IP address they use. Which of the answers corresponds best to the address in row "D"?
Which of the answers below best represents the additional requirements to allow protocol conversion?
The remote access server in a SCADA system provides WAN access. Which of the environments below would the remote access server reside?
There are several different network access methods available to wired Ethernet. Which of the methods below is the one used by wired Ethernet?